SanDisk Extreme Pro 64GB SDXC UHS-II V60 Memory Card SDSDXEP-064G-ANCIN - Best Buy
Amazon.com: SanDisk 64GB SDXC SD Extreme Pro UHS-II Memory Card Works with Olympus OM-D E-M10 II, OM-D E-M1 Mark II, Pen-F Camera (SDSDXPK-064G-ANCIN) Bundle with 1 Everything But Stromboli 3.0 Card Reader :